A new developed smart grid protection technique with wind farms based on positive sequence impedances and current angles

•Provide novel protection technique.•Devolve total positive sequence impedance and positive sequence current angles.•New wide area protection.•Integration of renewable resources on power grid. The wind farms penetration in power systems has an adverse impact on transmission lines system protection d...

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Bibliographic Details
Published in:Electric power systems research 2020-01, Vol.178, p.106020, Article 106020
Main Authors: Eissa, M.M., Mahfouz, Mohamed M.A., Sowilam, G.M.A.
Format: Article
Language:English
Subjects:
Distributed generation
Electric currents
Electricity distribution
Impedance
Positive sequence impedances and current angles
Power system protection
Renewable energy
Smart grid
Transmission lines
Wind farms
Wind power
Wind power generation
Wind speed
Windpowered generators
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Summary:•Provide novel protection technique.•Devolve total positive sequence impedance and positive sequence current angles.•New wide area protection.•Integration of renewable resources on power grid. The wind farms penetration in power systems has an adverse impact on transmission lines system protection due to the characteristics of wind farms that are different from the conventional sources during fault occurrence. Different factors such as the distributed generation concept, the own behavior of the wind generator, variation of wind farm impedance during faults inside the farm, and varying wind speed arise different challenges regarding the behavior of the relay protection. The paper introduces a novel protection technique based on total positive sequence impedance and positive sequence current angles through wide area monitoring system. A new protection-setting contour with an efficient and capacity to identify the faulted zone during different fault conditions is developed. The proposed protection scheme tripping action has to fulfil the fault ride through capability (FRT). The results showed a simple and robust new protection system for such smart grid configuration system with wind farms.
ISSN:0378-7796
1873-2046
DOI:10.1016/j.epsr.2019.106020